carabique

Oeuf Age : 43 Inscrit le : 28 Jan 2008 Messages : 6 Localisation : Nord

Bonjour,

Quelqu'un connaitrait-il le nom de ce carabique ?

[img]http://pagesperso-orange.fr/vnat/carabique-guyane[/img]
Trouvé au lac du Rorota (pas loin de Cayenne) en août 1994
Taille=12 mm

Oeuf Age : 43 Inscrit le : 28 Jan 2008 Messages : 6 Localisation : Nord

Ca ira mieux comme ça: http://pagesperso-orange.fr/vnat/carabique-guyane

Hi Carabus:

I believe that it is a Galerita sp. in this genus there is several species in South America.
If I am not mistaken this species it is very interesting, because the species of Galerita that I know, don't have spots in the elytrons, this way this it is very pretty!!.
Although it is strange that it has the extreme elitrals with tips. Tomorrow I will study the key for the genera of South America of Carabidae and I will inform you that I discover.
I believe that this information is already something,

Meanwhile we wait the opinion of other entomologists.
Now you will have to discover that species is it.

Cordial greetings

Carlos

Hi Carabus:
You excuses, but it can also be a Ega sp. or Colliuris sp. Although the species that I know in these genera are very small, less than 1/2 cm of long !!. Tomorrow I will study the key.
Cordially
Carlos

Et pourquoi pas Agra sp????

Stéphane

Regrettably today I could not go to the museum.
I don't believe that it is Agra, because the species of this genera that I know it has the pronoto lengthened as in these pictures:

But these species are from Paraguay:

pictrue 1 (Agra sp.):
http://www.servimg.com/image_preview.php?i=1&u=11945640

Picture 2 (Agra sp.)
http://www.servimg.com/image_preview.php?i=2&u=11945640

Picture 3 (Agra sp)
http://www.servimg.com/image_preview.php?i=3&u=11945640

Picture 4 (Agra sp.)
http://www.servimg.com/image_preview.php?i=4&u=11945640

The species of Agra in general live in trees, on the other hand the Galerita spp., Ega spp. and Colliuris spp. walking in the floor or they are caught with light traps (the Agra hardly arrives to the light !!).

How did you collect this species?

Although it could be an Agra sp.?, this way when I check the key of Carabidae (in museum) I will inform you

Greetings
Carlos

Criquet parleur... Inscrit le : 08 Nov 2005 Messages : 358

Comme tu le disais justement sur un autre forum Entomofou, il va falloir que tu effectues encore beaucoup de séjours en Guyane Laughing

Nous sommes effectivement plus proche de Galerita ou genres voisins que des Agra.
L'espèce sujet de ce post est fréquente, notamment au Rorota, sur les feuilles de grand Balisier (Heliconia sp) à vue de jour. Je n'ai jamais pris d'Agra (important genre très diversifié en Guyane) ainsi dont les représentants, contrairement à ce qu'indique Carlos, viennent fort bien au piège lumineux

Bon, eh bien il va vraiment falloir que j'y retourne (faut juste que je fasse quelques économies!!)...

Stéphane

Oeuf Age : 43 Inscrit le : 28 Jan 2008 Messages : 6 Localisation : Nord

Carlos wrote:

Dear friend:

As the picture it is not very useful to be able to see the characters that are in the key, I sends you this, so that you same can studies it with the specimen in your hands. I believe that first we have to see if it belongs to some of these genera, if it doesn't belong to none of them, then I will compare your picture with the different genera that we have identified in the collection of the museum to see that it can be. When we are more sure of the tribe then we will know to that genera belongs and we will attempt the determination until species, for the time being for my it continues being something very near to Galerita, the problem is that Carabidae has many similar genus.

Is interesting the comment of gmg, because apparently in each country it is different (but I don't know !!) since here the Galerita always come to the light and very rarely the Agra, can it also be for the deforestation? or is it that the Agra is stricter with the ecological requirements?.

Cordial greetings

Key to genera of Neotropical Galeritini (adults)
(taken of Hans Reichardt, 1977)

1. Elytron with setigerous puncture near scutellum; margin with four setigerous punctures, each with long seta. Size small, lenght of body about 10 mm. Planetina (Neotropical)............................................................................ Ancystroglossus Chaudoir, 1862.

1' Elytron without setigerous puncture near scutellum, and without marginal setiferous puncture. Lenght if body more than 15 mm. Galeritina .................................................. 2

2 (1') Scape of antenna with two parallel rows of setae on ventral face. Base of maxilla with large tubercle, with erect setae (Neotropical)...................................... Trichognathus Latreille, 1825

2' Antennal scape normally pubescent. Base of maxilla without tubercle .................................... 3

3 (2') Elytron striate-punctate, with plane interstices, each with six to eight irregular rows of reddish setae (Neartic region).............................................................. Progaleritina Jeannel, 1949

3' Elytron carinate; reduced or not, but visible, even if vestigial. Intervals with or without two longitudinal carinulae, and with or without two to four rows of reddish setae (Cosmnopolita).......................................................Galerita Fabricius, 1801.

Oeuf Age : 43 Inscrit le : 28 Jan 2008 Messages : 6 Localisation : Nord

Carlos, using your key, i find Galerita. I measured again the specimen and the size is more exactly 14 mm.

Now, if you could help me to find the species name, it would be perfect Very Happy

!

Hi:

The monograph of the Galeritini is in this paper:

Reichardt, H. 1967a A Monographic revision of the American Galeritini (Coleoptera: Carabidae). Arquivos de Zoología de Sao Paulo 15 (1- 2): 1 - 176.

Galerita is a cosmopolita genera.

Distribution in America: Southestern of United States, Mexico to North Argentina
Neotropical region: 52 species
Brasil: 24 species
Oriental Región with 8 species
Africa (Inlcuded Madagascar): 17 species

I believe that in Paraguay there are 6 or 7 species ?, but this is alone speculative !!.

My problem is that I don't have the revision of the genera and like you can see they are many species, I know alone those of Paraguay thanks to a reference collection. On the other hand, if you allow me? could I show the picture to some friend or to put it in other forums to see if somebody knows the species?
Lament to not be able to help you more than that,
Greetings
Carlos

Oeuf Age : 43 Inscrit le : 28 Jan 2008 Messages : 6 Localisation : Nord

Hi Carlos,

Thank you for your help. I am already happy with the genus Galerita. Of course, you can use the picture as you want to try to find the species name.

Greetings.

Criquet parleur... Inscrit le : 08 Nov 2005 Messages : 358

Quel dynamisme ce forum

Et bien non! nous ne sommes pas chez les Galeritini, mais chez les Lebiini, donc effectivement proche des Agra:
Calophaena sp.

Oeuf Age : 43 Inscrit le : 28 Jan 2008 Messages : 6 Localisation : Nord

Ah... J'ai bien fait de revenir Smile

... Effectivement, la comparaison avec un calophaena par exemple sur http://www.carabidae.ru/foto/displayimage.php?album=41&pos=3 est plus convaincante ! Merci gmg !